tvl-depot/third_party/overlays/haskell/default.nix

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# Defines an overlay for overriding Haskell packages, for example to
# avoid breakage currently present in nixpkgs or to modify package
# versions.
{ lib, ... }:
self: super: # overlay parameters for the nixpkgs overlay
let
overrides = hsSelf: hsSuper: with super.haskell.lib; {
generic-arbitrary = appendPatch hsSuper.generic-arbitrary
[ ./patches/generic-arbitrary-export-garbitrary.patch ];
};
in {
haskellPackages = super.haskellPackages.override {
inherit overrides;
};
}